Jacquard covering and tuck pattern device for flat hosiery frames



March 16, 1937. A. LOIMANN JACQUARD COVERING AND TUCK' PATTERN DEVICEFOR FLAT HOSIERY FRAMES Filed May 15, 1954 Patented Mar. 16, 1937PATIENT. OFFICE JACQUARD COVERING TUCK PATTEB DEVICE FOR FLAT HOSIERYFRAMES \Anton Loimann, Chemnitz, Germany 7 Application May 15, 1934,Serial No. 725,781 In Germany June 8, "1933 2" Claims. (01. 66- 98)Thisinvention relates to a jacquard covering and tuck pattern device forflat hosiery frames, in which auxiliary sinkers, vertically adjustableaccording to pattern, are provided within range 5 of the-knocking overbits.

To avoid the defects of covering "or. tuck pattern devices and to impartto the vertically adjustable auxiliary members a reliable drive duringtheir forward motion in'the direction towards the frame or coveringneedles Without being forced to niove the guide bed of the auxiliarymembers, disposed relatively far below the sinker bar, that. the bedcanbe stationary, .though it may be taken out; The

invention provides thatithe auxiliary members are arranged in theirgiiide bed so as to be both vertically and'horizontally" movabletherein. The

auxiliary members are adjusted in thedirection tothe-covering'or frameneedles by a presser bar capable of. forward and backward motion, sothat the back pressure of the needles is taken up not by the" low guidebed of said members, but almost completely by the presser bar, and theguid- ,ing'of the auxiliarysinkers during vertical ad-; 'justment aswell as the driving motion are efiected in a niore reliable manner thanin known devices. The arrangement just described affords theconsiderable advantage that the auxiliary -members 'may safely beadjusted :from below through the-row of jack and dividing sinkers sohigh that ftheir upperends will acton the back of the covering needlesfor guiding them, in openv work. reliably to the'frame' needles withoutthe least trouble which otherwise easily develops in c nnection withauxiliary members.

- .One form of the'invention is, illustrated in the accompanyingdrawing, in which Figure 1 is a side view of the frame required forunderstanding the invention o and shown in position during regularoperation; Fig. 2, a view of the same parts during the production of acovering pattern.

Referring to the'drawing", the jack and dividing sinkers b aredisplaceable on the lower part a or the sinker bar and cooperate asusual with the needles 0. Knocking overtakes place on the bits 0. Thecomblike yet integral presserbar d is capable of horizontal'forward andbackward adjustment. It is supported on the top t of the 60 sinker bar.The sinker bar is recessed so that the presser bar it with its edge Ican be withdrawn or retractedinto a position back of the ordinaryworking position and thus the auxiliary members I can be adjusted infront of the presser bar. i In ordinary operation the presser bar d ishor-' the known jacquard parts ofan ordinary flat hosiery izontallymoved to and fro according to the double I arrow 3:, so that it comeswithin range of the needle beards during pressing andthe otherwiseunavoidable swinging motion of the needles for pressing off can bedispensed with. In this case the auxiliary members 7 are retracted underthe-presser edge I ofthe presser bar d. For carrying out open work theauxiliary members f are movable up and down in stationary guides of-themachine frame and rest with their lower end in known manner on theplates 9 guided in the machine frame and connected, by

threads or wires h with a jacquardattachment by means of which they canbe horizontally adjusted ontheir guide bed. 'The'plates g possess one orseveral steps and when displaced raise the auxiliary members I from alower inoperative into a higher operative position. The guide beds ofthe members I and of the. plates 9 are stationarily, yet removablysupported, so that the threads orwires h can be connected with platesg.outside the machine. After removal of the guide bed of the plates 9the auxiliary members f rest with their projecting nibs r on an edge oftheir guiding device 2.

When the members are used, 1. e., patterns. are produced, the presserbar (I is moved 'far enough away from the needles c to allow the.members 1 to be adjusted in front of the presser edge I and to bepressed forward acting against the beards of the frame needles oragainstthe transfer needles.

-To produce lace patterns the members 1 are raised high enough tohave-theirupperends Icbeyond the lower nibs of the jack and dividin 35sinkers. 'Duringforward motion of the presser bar d,,driven' bya'special eccentric, the auxiliary members are pressed against the backsof the transfer needles m in a manner similar to the well known rockmembers of U. S. Patent No. 1,858,777 after the transfer needles havebeen lowered, so that the transfer points engage the grooves of theframe needles 0 and take up their loops. As the members y, do not engagethe points of the,

- transfer needles m, but act on a higher and much d, so that theseneedles receive'the finished loops whereas the loops of the needleswhose auxiliary members I have not been raised are locked in the needlebeards.

'It is possible to provide only one step on the plates 9 to raise theoperating members I tor producing both tuck or lace patterns. In thiscase the upper ends of the members I act upon a lower point of thetransfer needles than when raised by a special step of the plates 9.

It is not absolutely necessary to move the presser bar horizontally toand "fro, on the contrary, it being possible to move the frame needleswith the transfer needles onto the upper ends of-the raised members i.

Instead of providing a presser bar d on the top of the sinker bar theremay be arranged a bar moving the auxiliary members I to and fro betweenthe jack and dividing sinkers and the knocking over comb or below thelatter. For the same purpose it ispossible to use the knocking overcomb.

I claim:

'1. Jacquard covering and tuck pattern device for flat hosiery frames,comprising knocking over bits, a guide bed, auxiliary members disposedln said bed and vertically and horizontally movable therein, a presserbar capable of forward and backward displacement, and means for raisingsaid auxiliary members from inoperative position to within range of saidpresser bar, the upper ends of the raised members being moved in a toand fro horizontal direction.

'2. A device according to claim 1, in which the upper ends of theauxiliary members after raising the latter vact on the backs of thecovering needles beyond the lower nibs of the jack and dividing sinkers.

ANTON LOHVIANN. 20

